Four letter words--Change 0 to 1 letter to make a new word

rout.

tour.

tort.

trot.

tart :lemon:

rate.

tear :cry:

neat :relaxed:

teen,

note.

nose :nose:

Nope!

Dope!

node.

Dove :dove:

veto X

vote :us:

vole.

love :heart:

evil :smiling_imp: